<!DOCTYPE html>
<html lang="en">
    <head>
        {% block head %}
            <h4>{% block title %}{% endblock %}-Web基础模板</h4>
        {% endblock %}
        <h4>Jinjia2模板示例</h4>
    </head>
    <body>
        <div id="content">
            {% block content %}
            {% endblock %}
        </div>
        <div id="footer">
            {% block footer %}
            {% endblock %}
        </div>
</body>
</html>
